Toronto artists Eric Cheung and Sean Martindale have been busy around their city, turning advertising posters into graffiti pocket planters. Introducing nature to the urban environment in ways that might encourage others to do the same, or to at least consider such possibilities.

A further addition to the Natural Urban Interventions. I see this as an impromptu architectural green wall system (or satire of one) that is cut out of existing poster spaces. Some may call it guerrilla gardening, but I see this as more of an ‘Urban Hack’ in its ability to jam an urban system and provoke reaction

They want you to join them, the planter templates are on the blog as well as photos and updates about how their urban project is going.

Ghostpatrol is an Australian artist currently working in a studio in Melbourne called Mitten Fortress. Ghost started out stenciling walls but has since moved into painting and mixed media. His work is quite versatile from plush dolls to giant murals, usually with pretty vulnerable characters that you almost want to take home with you- to get them off the streets. Check out more of his amazing work here.

I thought seeing as Ghassan did a sweet Australian post this week I would switch it up and do a North American one.

Over 120 illegal billboards throughout New York City were white washed by dozens of volunteers for Jordan Seiler’s ambitious “New York Street Advertising Takeover”.

NYSAT was organised as a reaction to the hundreds of billboards that are not registered with the city, and therefore are illegal. While illegal, these violations are not being prosecuted by the City of New York, allowing the billboard companies to garner huge profits by cluttering our outdoor space with intrusive and unsightly ads.

After the illegal spots were white washed, over eighty artists transformed these spaces into personal pieces of art.

You can see good graffiti in most cities around the world. Sometimes you see some that really is odd, I like that stuff best. This week I found some gems from a couple of small towns in outback Australia.

I am particularly fond of the the town of Telfer’s graffiti. Sometimes the small and unpredictable works really make your day.

Perth street art production group Ololo recently approached the construction manager of an inner-city skyscraper when they heard he hated the grey walls of the recently built Condor Tower five-story car park. The three creative friends – Hurben, Shensing and Griv asked to embellish the interior with street art-inspired murals. Each floor has a theme based on the elemental planes of earth: Space, Sky, Land, Underwater and Core. Local and inter-state artists came together to fill the space with color. Participating street artist ‘Creepy’ hopes the project will encourage similar ventures between urban developers and the creative community within Perth.